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Thread: Respiratory Symptoms - Hemoptysis

  1. #1

    Default Respiratory Symptoms - Hemoptysis

    Distinguishing Between Hemoptysis and Hematemesis

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    Focused Questions

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    There are more than 100 causes of hemoptysis. In the primary care setting, the most common causes of hemoptysis are acute and chronic bronchitis, pneumonia, tuberculosis, and lung cancer. Other important causes include bronchiectasis, pulmonary embolism, trauma, fungal infections, foreign bodies, and rheumatologist diseases such as systemic lupus erythematosus, Goodpasture's syndrome, and antineutrophil cytoplasmic antibody (ANCA)-assocaited vasculitis.

    Bronchitis is still considered the most common cause of hemoptysis, but it rarely causes massive hemoptysis. Although massive hemoptysis accounts for only 5% to 15% of episodes, it is a true medical emergency that requires intensive care with immediate evaluation for the underlying cause.

    Differential Diagnosis

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    Last edited by CheneyHsiung; Sun 17th July '16 at 2:12pm.
    Clinical Pharmacy Specialist - Hematology

  2. #2

    Default Re: Respiratory Symptoms - Hemoptysis

    Diagnostic Algorithm
    Respiratory Symptoms - Hemoptysis-screen-shot-2016-07-19-at-7-20-42-pm-png
    Clinical Pharmacy Specialist - Hematology

  3. #3
    PharmD Candidate mariobryant's Avatar
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    Mar 2017

    Default Re: Respiratory Symptoms - Hemoptysis

    I believe that such differences between hemoptysis and hematemesis:
    1) There is usually a tingling sensation in the throat in hemoptysis while in hematemesis the patient will usually complain from nausea and upset stomach.
    2) The blood is usually frothy and bright red in hemoptysis while it is dark red in hematemesis, non-frothy and food particles may also be present at the same time.
    3) Blood in hematemesis will give an acidic pH when tested with litmus paper whereas that in hemoptysis will be neutral to alkaline.
    4) Stools will be almost always positive for occult blood in hematemesis while it is usually negative in case of hemoptysis. But it can also be positive at times if the patient has swallowed his sputum.

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